Questions: The diameter of a circle is 12 kilometers, What is the circle's area?
Use π=3.14 and round your answer to the nearest hundredth.
square kilometers
Transcript text: The diameter of a circle is 12 kilometers, What is the circle's area?
Use $\pi=3.14$ and round your answer to the nearest hundredth.
$\square$ square kilometers
Solution
Solution Steps
Step 1: Find the radius
The diameter of the circle is given as 12 km. The radius is half the diameter, so the radius is 12 km / 2 = 6 km.
Step 2: Calculate the area
The area of a circle is given by the formula A = πr², where r is the radius. We are given to use π ≈ 3.14 and the radius is 6 km. Therefore, the area is A = 3.14 * (6 km)² = 3.14 * 36 km² = 113.04 km².
Final Answer:
The area of the circle is 113.04 square kilometers.